article: Jim and Andy are standing at the bus stop and waiting for the No.6 bus. They want to buy some new books. Suddenly , two men are running past them. A short man is crying,"help! help! Catch  the thief! Give my bag back to me.""Oh! That man is a thief!"Jim shouts to Andy. They begin to run after the tall man, and very soon they catch him and get the bag back. The short man runs over and smiles,"Thank you. But we are filming a movie."
question: What are Andy and Jim doing at the bus stop?
options: They are waiting for the thief. They are waiting for the bus. They are waiting for their friends. They are watching a movie.